./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a49fa15b0860d2357f9ad3c8c6bab1d80cf83a6734355dc0b05c55121c837273 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 22:50:59,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 22:50:59,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 22:50:59,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 22:50:59,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 22:50:59,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 22:50:59,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 22:50:59,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 22:50:59,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 22:50:59,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 22:50:59,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 22:50:59,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 22:50:59,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 22:50:59,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 22:50:59,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 22:50:59,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 22:50:59,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 22:50:59,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 22:50:59,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 22:50:59,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 22:50:59,187 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 22:50:59,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 22:50:59,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 22:50:59,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 22:50:59,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 22:50:59,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 22:50:59,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 22:50:59,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 22:50:59,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 22:50:59,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 22:50:59,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 22:50:59,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 22:50:59,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 22:50:59,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 22:50:59,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 22:50:59,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 22:50:59,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 22:50:59,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 22:50:59,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 22:50:59,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 22:50:59,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 22:50:59,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 22:50:59,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-13 22:50:59,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 22:50:59,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 22:50:59,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 22:50:59,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 22:50:59,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 22:50:59,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 22:50:59,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 22:50:59,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 22:50:59,247 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 22:50:59,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 22:50:59,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 22:50:59,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 22:50:59,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 22:50:59,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 22:50:59,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 22:50:59,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 22:50:59,249 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 22:50:59,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 22:50:59,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 22:50:59,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 22:50:59,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 22:50:59,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:50:59,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 22:50:59,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 22:50:59,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 22:50:59,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 22:50:59,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 22:50:59,251 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 22:50:59,251 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 22:50:59,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 22:50:59,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49fa15b0860d2357f9ad3c8c6bab1d80cf83a6734355dc0b05c55121c837273 [2022-07-13 22:50:59,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 22:50:59,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 22:50:59,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 22:50:59,527 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 22:50:59,527 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 22:50:59,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i [2022-07-13 22:50:59,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9578dbb95/e1266989687d4d5f9fb2b6f82dbe3bfa/FLAGf5e054e0c [2022-07-13 22:51:00,215 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 22:51:00,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i [2022-07-13 22:51:00,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9578dbb95/e1266989687d4d5f9fb2b6f82dbe3bfa/FLAGf5e054e0c [2022-07-13 22:51:00,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9578dbb95/e1266989687d4d5f9fb2b6f82dbe3bfa [2022-07-13 22:51:00,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 22:51:00,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 22:51:00,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 22:51:00,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 22:51:00,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 22:51:00,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:51:00" (1/1) ... [2022-07-13 22:51:00,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6126ef12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:00, skipping insertion in model container [2022-07-13 22:51:00,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:51:00" (1/1) ... [2022-07-13 22:51:00,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 22:51:00,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 22:51:00,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i[4493,4506] [2022-07-13 22:51:00,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i[4553,4566] [2022-07-13 22:51:01,261 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,262 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,263 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,263 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,264 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,275 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,275 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,277 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,278 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,279 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,280 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,281 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,281 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,509 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:51:01,510 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:51:01,511 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:51:01,512 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:51:01,513 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:51:01,514 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:51:01,514 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:51:01,515 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:51:01,515 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:51:01,516 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:51:01,613 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:51:01,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:51:01,678 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 22:51:01,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i[4493,4506] [2022-07-13 22:51:01,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i[4553,4566] [2022-07-13 22:51:01,756 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,757 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,757 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,760 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,761 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,771 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,772 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,773 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,774 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,775 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,777 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,778 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,778 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:01,820 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:51:01,822 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:51:01,822 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:51:01,823 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:51:01,827 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:51:01,828 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:51:01,828 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:51:01,829 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:51:01,829 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:51:01,829 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:51:01,851 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:51:01,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:51:02,060 INFO L208 MainTranslator]: Completed translation [2022-07-13 22:51:02,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:02 WrapperNode [2022-07-13 22:51:02,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 22:51:02,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 22:51:02,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 22:51:02,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 22:51:02,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:02" (1/1) ... [2022-07-13 22:51:02,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:02" (1/1) ... [2022-07-13 22:51:02,166 INFO L137 Inliner]: procedures = 679, calls = 1040, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 136 [2022-07-13 22:51:02,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 22:51:02,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 22:51:02,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 22:51:02,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 22:51:02,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:02" (1/1) ... [2022-07-13 22:51:02,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:02" (1/1) ... [2022-07-13 22:51:02,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:02" (1/1) ... [2022-07-13 22:51:02,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:02" (1/1) ... [2022-07-13 22:51:02,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:02" (1/1) ... [2022-07-13 22:51:02,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:02" (1/1) ... [2022-07-13 22:51:02,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:02" (1/1) ... [2022-07-13 22:51:02,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 22:51:02,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 22:51:02,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 22:51:02,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 22:51:02,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:02" (1/1) ... [2022-07-13 22:51:02,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:51:02,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:02,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 22:51:02,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 22:51:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 22:51:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-13 22:51:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-13 22:51:02,272 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2022-07-13 22:51:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2022-07-13 22:51:02,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 22:51:02,274 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2022-07-13 22:51:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2022-07-13 22:51:02,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 22:51:02,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 22:51:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 22:51:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 22:51:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-13 22:51:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-13 22:51:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 22:51:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 22:51:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 22:51:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-13 22:51:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-13 22:51:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 22:51:02,517 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 22:51:02,519 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 22:51:02,757 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 22:51:02,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 22:51:02,769 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 22:51:02,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:51:02 BoogieIcfgContainer [2022-07-13 22:51:02,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 22:51:02,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 22:51:02,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 22:51:02,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 22:51:02,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 10:51:00" (1/3) ... [2022-07-13 22:51:02,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca768dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:51:02, skipping insertion in model container [2022-07-13 22:51:02,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:02" (2/3) ... [2022-07-13 22:51:02,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca768dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:51:02, skipping insertion in model container [2022-07-13 22:51:02,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:51:02" (3/3) ... [2022-07-13 22:51:02,781 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_end_harness.i [2022-07-13 22:51:02,794 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 22:51:02,795 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 22:51:02,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 22:51:02,899 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@526e44b2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5fb47480 [2022-07-13 22:51:02,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 22:51:02,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 49 states have internal predecessors, (65), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-13 22:51:02,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-13 22:51:02,917 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:02,918 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:02,919 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:02,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:02,925 INFO L85 PathProgramCache]: Analyzing trace with hash -2107862704, now seen corresponding path program 1 times [2022-07-13 22:51:02,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:02,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454665729] [2022-07-13 22:51:02,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:02,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 22:51:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 22:51:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 22:51:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 22:51:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 22:51:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,396 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-13 22:51:03,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:03,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454665729] [2022-07-13 22:51:03,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454665729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:51:03,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:51:03,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 22:51:03,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921208442] [2022-07-13 22:51:03,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:51:03,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 22:51:03,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:03,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 22:51:03,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 22:51:03,444 INFO L87 Difference]: Start difference. First operand has 68 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 49 states have internal predecessors, (65), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 22:51:03,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:03,471 INFO L93 Difference]: Finished difference Result 128 states and 184 transitions. [2022-07-13 22:51:03,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 22:51:03,473 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-07-13 22:51:03,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:03,479 INFO L225 Difference]: With dead ends: 128 [2022-07-13 22:51:03,479 INFO L226 Difference]: Without dead ends: 63 [2022-07-13 22:51:03,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 22:51:03,485 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:03,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:51:03,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-13 22:51:03,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-07-13 22:51:03,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 45 states have internal predecessors, (57), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-07-13 22:51:03,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2022-07-13 22:51:03,541 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 68 [2022-07-13 22:51:03,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:03,542 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2022-07-13 22:51:03,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 22:51:03,543 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2022-07-13 22:51:03,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-13 22:51:03,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:03,549 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:03,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 22:51:03,550 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:03,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:03,550 INFO L85 PathProgramCache]: Analyzing trace with hash 900796622, now seen corresponding path program 1 times [2022-07-13 22:51:03,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:03,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543647471] [2022-07-13 22:51:03,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:03,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 22:51:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 22:51:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 22:51:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 22:51:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 22:51:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:03,905 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-13 22:51:03,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:03,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543647471] [2022-07-13 22:51:03,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543647471] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:51:03,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108742355] [2022-07-13 22:51:03,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:03,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:03,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:03,912 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:51:03,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 22:51:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:04,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 64 conjunts are in the unsatisfiable core [2022-07-13 22:51:04,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:51:04,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:51:04,225 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-07-13 22:51:04,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:51:04,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-07-13 22:51:04,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:51:04,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:51:04,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:51:04,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-07-13 22:51:04,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:51:04,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:51:04,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:51:04,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-07-13 22:51:04,621 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-13 22:51:04,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:51:04,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108742355] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:51:04,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:51:04,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2022-07-13 22:51:04,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222281482] [2022-07-13 22:51:04,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:51:04,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 22:51:04,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:04,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 22:51:04,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-13 22:51:04,624 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-13 22:51:04,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:04,734 INFO L93 Difference]: Finished difference Result 144 states and 195 transitions. [2022-07-13 22:51:04,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 22:51:04,735 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2022-07-13 22:51:04,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:04,737 INFO L225 Difference]: With dead ends: 144 [2022-07-13 22:51:04,737 INFO L226 Difference]: Without dead ends: 93 [2022-07-13 22:51:04,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:51:04,739 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 32 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:04,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 276 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 27 Unchecked, 0.0s Time] [2022-07-13 22:51:04,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-13 22:51:04,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 79. [2022-07-13 22:51:04,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 60 states have internal predecessors, (77), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) [2022-07-13 22:51:04,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 105 transitions. [2022-07-13 22:51:04,751 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 105 transitions. Word has length 68 [2022-07-13 22:51:04,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:04,751 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 105 transitions. [2022-07-13 22:51:04,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-13 22:51:04,751 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 105 transitions. [2022-07-13 22:51:04,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-13 22:51:04,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:04,753 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:04,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-13 22:51:04,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:04,980 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:04,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:04,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1148591220, now seen corresponding path program 1 times [2022-07-13 22:51:04,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:04,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816420527] [2022-07-13 22:51:04,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:04,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:05,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:05,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:05,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 22:51:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:05,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 22:51:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:05,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 22:51:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:05,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 22:51:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:05,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 22:51:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:05,167 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-13 22:51:05,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:05,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816420527] [2022-07-13 22:51:05,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816420527] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:51:05,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733518420] [2022-07-13 22:51:05,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:05,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:05,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:05,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:51:05,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 22:51:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:05,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 46 conjunts are in the unsatisfiable core [2022-07-13 22:51:05,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:51:05,378 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 22:51:05,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-13 22:51:05,392 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 22:51:05,392 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-13 22:51:06,197 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 22:51:06,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:51:06,728 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 20 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-13 22:51:06,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733518420] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:51:06,729 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 22:51:06,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 15, 12] total 28 [2022-07-13 22:51:06,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46682008] [2022-07-13 22:51:06,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 22:51:06,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-13 22:51:06,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:06,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-13 22:51:06,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2022-07-13 22:51:06,732 INFO L87 Difference]: Start difference. First operand 79 states and 105 transitions. Second operand has 28 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 25 states have internal predecessors, (94), 9 states have call successors, (19), 3 states have call predecessors, (19), 7 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) [2022-07-13 22:51:08,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:08,449 INFO L93 Difference]: Finished difference Result 246 states and 404 transitions. [2022-07-13 22:51:08,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-07-13 22:51:08,450 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 25 states have internal predecessors, (94), 9 states have call successors, (19), 3 states have call predecessors, (19), 7 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) Word has length 68 [2022-07-13 22:51:08,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:08,453 INFO L225 Difference]: With dead ends: 246 [2022-07-13 22:51:08,454 INFO L226 Difference]: Without dead ends: 192 [2022-07-13 22:51:08,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 127 SyntacticMatches, 6 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=439, Invalid=3221, Unknown=0, NotChecked=0, Total=3660 [2022-07-13 22:51:08,456 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 255 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 373 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:08,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1560 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1087 Invalid, 0 Unknown, 373 Unchecked, 0.8s Time] [2022-07-13 22:51:08,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-07-13 22:51:08,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 139. [2022-07-13 22:51:08,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 104 states have (on average 1.375) internal successors, (143), 110 states have internal predecessors, (143), 22 states have call successors, (22), 8 states have call predecessors, (22), 12 states have return successors, (43), 20 states have call predecessors, (43), 21 states have call successors, (43) [2022-07-13 22:51:08,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 208 transitions. [2022-07-13 22:51:08,482 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 208 transitions. Word has length 68 [2022-07-13 22:51:08,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:08,482 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 208 transitions. [2022-07-13 22:51:08,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 25 states have internal predecessors, (94), 9 states have call successors, (19), 3 states have call predecessors, (19), 7 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) [2022-07-13 22:51:08,483 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 208 transitions. [2022-07-13 22:51:08,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-13 22:51:08,485 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:08,486 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:08,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 22:51:08,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-13 22:51:08,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:08,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:08,700 INFO L85 PathProgramCache]: Analyzing trace with hash 577933322, now seen corresponding path program 1 times [2022-07-13 22:51:08,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:08,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431560267] [2022-07-13 22:51:08,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:08,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:08,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:08,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:08,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 22:51:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:08,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 22:51:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:08,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 22:51:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:08,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 22:51:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:08,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 22:51:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:08,862 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-13 22:51:08,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:08,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431560267] [2022-07-13 22:51:08,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431560267] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:51:08,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004511958] [2022-07-13 22:51:08,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:08,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:08,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:08,865 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:51:08,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 22:51:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:09,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 22:51:09,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:51:09,067 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-13 22:51:09,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:51:09,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004511958] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:51:09,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:51:09,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-07-13 22:51:09,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238593987] [2022-07-13 22:51:09,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:51:09,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:51:09,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:09,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:51:09,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:51:09,069 INFO L87 Difference]: Start difference. First operand 139 states and 208 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 22:51:09,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:09,191 INFO L93 Difference]: Finished difference Result 259 states and 395 transitions. [2022-07-13 22:51:09,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:51:09,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2022-07-13 22:51:09,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:09,193 INFO L225 Difference]: With dead ends: 259 [2022-07-13 22:51:09,193 INFO L226 Difference]: Without dead ends: 150 [2022-07-13 22:51:09,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-07-13 22:51:09,195 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 105 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:09,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 239 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 22:51:09,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-07-13 22:51:09,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 145. [2022-07-13 22:51:09,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 108 states have (on average 1.3611111111111112) internal successors, (147), 116 states have internal predecessors, (147), 22 states have call successors, (22), 8 states have call predecessors, (22), 14 states have return successors, (49), 20 states have call predecessors, (49), 21 states have call successors, (49) [2022-07-13 22:51:09,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 218 transitions. [2022-07-13 22:51:09,214 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 218 transitions. Word has length 70 [2022-07-13 22:51:09,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:09,214 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 218 transitions. [2022-07-13 22:51:09,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 22:51:09,215 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 218 transitions. [2022-07-13 22:51:09,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-13 22:51:09,216 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:09,217 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:09,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 22:51:09,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:09,427 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:09,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:09,427 INFO L85 PathProgramCache]: Analyzing trace with hash -34807881, now seen corresponding path program 1 times [2022-07-13 22:51:09,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:09,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502751571] [2022-07-13 22:51:09,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:09,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:09,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:09,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:09,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 22:51:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:09,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 22:51:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:09,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 22:51:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:09,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 22:51:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:09,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 22:51:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:09,565 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-13 22:51:09,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:09,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502751571] [2022-07-13 22:51:09,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502751571] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:51:09,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335239880] [2022-07-13 22:51:09,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:09,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:09,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:09,568 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:51:09,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 22:51:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:09,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 22:51:09,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:51:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-13 22:51:09,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:51:09,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335239880] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:51:09,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:51:09,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2022-07-13 22:51:09,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412574123] [2022-07-13 22:51:09,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:51:09,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:51:09,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:09,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:51:09,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-13 22:51:09,796 INFO L87 Difference]: Start difference. First operand 145 states and 218 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 22:51:10,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:10,008 INFO L93 Difference]: Finished difference Result 299 states and 464 transitions. [2022-07-13 22:51:10,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 22:51:10,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2022-07-13 22:51:10,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:10,011 INFO L225 Difference]: With dead ends: 299 [2022-07-13 22:51:10,011 INFO L226 Difference]: Without dead ends: 184 [2022-07-13 22:51:10,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2022-07-13 22:51:10,012 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 142 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:10,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 279 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 22:51:10,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-07-13 22:51:10,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 149. [2022-07-13 22:51:10,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 120 states have internal predecessors, (153), 22 states have call successors, (22), 8 states have call predecessors, (22), 14 states have return successors, (49), 20 states have call predecessors, (49), 21 states have call successors, (49) [2022-07-13 22:51:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 224 transitions. [2022-07-13 22:51:10,043 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 224 transitions. Word has length 72 [2022-07-13 22:51:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:10,043 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 224 transitions. [2022-07-13 22:51:10,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 22:51:10,044 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 224 transitions. [2022-07-13 22:51:10,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-13 22:51:10,046 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:10,046 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:10,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 22:51:10,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:10,271 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:10,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:10,271 INFO L85 PathProgramCache]: Analyzing trace with hash 387052583, now seen corresponding path program 1 times [2022-07-13 22:51:10,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:10,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218346186] [2022-07-13 22:51:10,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:10,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 22:51:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 22:51:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 22:51:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 22:51:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 22:51:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,387 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-13 22:51:10,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:10,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218346186] [2022-07-13 22:51:10,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218346186] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:51:10,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386246198] [2022-07-13 22:51:10,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:10,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:10,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:10,392 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:51:10,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 22:51:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 22:51:10,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:51:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-13 22:51:10,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:51:10,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386246198] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:51:10,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:51:10,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-13 22:51:10,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383099329] [2022-07-13 22:51:10,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:51:10,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 22:51:10,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:10,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 22:51:10,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:51:10,537 INFO L87 Difference]: Start difference. First operand 149 states and 224 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 22:51:10,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:10,561 INFO L93 Difference]: Finished difference Result 294 states and 468 transitions. [2022-07-13 22:51:10,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 22:51:10,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2022-07-13 22:51:10,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:10,565 INFO L225 Difference]: With dead ends: 294 [2022-07-13 22:51:10,565 INFO L226 Difference]: Without dead ends: 175 [2022-07-13 22:51:10,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:51:10,567 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 6 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:10,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 160 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:51:10,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-07-13 22:51:10,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 151. [2022-07-13 22:51:10,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 114 states have (on average 1.3508771929824561) internal successors, (154), 122 states have internal predecessors, (154), 22 states have call successors, (22), 8 states have call predecessors, (22), 14 states have return successors, (49), 20 states have call predecessors, (49), 21 states have call successors, (49) [2022-07-13 22:51:10,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 225 transitions. [2022-07-13 22:51:10,604 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 225 transitions. Word has length 73 [2022-07-13 22:51:10,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:10,606 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 225 transitions. [2022-07-13 22:51:10,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 22:51:10,606 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 225 transitions. [2022-07-13 22:51:10,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-13 22:51:10,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:10,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:10,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 22:51:10,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:10,816 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:10,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:10,816 INFO L85 PathProgramCache]: Analyzing trace with hash -186702901, now seen corresponding path program 1 times [2022-07-13 22:51:10,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:10,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541380606] [2022-07-13 22:51:10,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:10,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 22:51:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 22:51:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-13 22:51:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 22:51:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:10,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 22:51:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:11,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 22:51:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:11,009 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-13 22:51:11,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:11,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541380606] [2022-07-13 22:51:11,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541380606] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:51:11,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015238439] [2022-07-13 22:51:11,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:11,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:11,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:11,016 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:51:11,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 22:51:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:11,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-13 22:51:11,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:51:11,215 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 22:51:11,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-13 22:51:11,227 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 22:51:11,228 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-13 22:51:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-13 22:51:11,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:51:12,459 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 20 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 22:51:12,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015238439] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:51:12,459 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 22:51:12,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 15, 10] total 27 [2022-07-13 22:51:12,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802561909] [2022-07-13 22:51:12,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 22:51:12,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-13 22:51:12,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:12,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-13 22:51:12,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=613, Unknown=0, NotChecked=0, Total=702 [2022-07-13 22:51:12,461 INFO L87 Difference]: Start difference. First operand 151 states and 225 transitions. Second operand has 27 states, 26 states have (on average 4.653846153846154) internal successors, (121), 24 states have internal predecessors, (121), 10 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (22), 9 states have call predecessors, (22), 10 states have call successors, (22) [2022-07-13 22:51:13,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:13,235 INFO L93 Difference]: Finished difference Result 342 states and 517 transitions. [2022-07-13 22:51:13,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-07-13 22:51:13,236 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.653846153846154) internal successors, (121), 24 states have internal predecessors, (121), 10 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (22), 9 states have call predecessors, (22), 10 states have call successors, (22) Word has length 83 [2022-07-13 22:51:13,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:13,238 INFO L225 Difference]: With dead ends: 342 [2022-07-13 22:51:13,238 INFO L226 Difference]: Without dead ends: 221 [2022-07-13 22:51:13,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 161 SyntacticMatches, 7 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=244, Invalid=1826, Unknown=0, NotChecked=0, Total=2070 [2022-07-13 22:51:13,240 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 100 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 116 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:13,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1337 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 608 Invalid, 0 Unknown, 116 Unchecked, 0.4s Time] [2022-07-13 22:51:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-07-13 22:51:13,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 175. [2022-07-13 22:51:13,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 134 states have (on average 1.3507462686567164) internal successors, (181), 144 states have internal predecessors, (181), 22 states have call successors, (22), 10 states have call predecessors, (22), 18 states have return successors, (54), 20 states have call predecessors, (54), 21 states have call successors, (54) [2022-07-13 22:51:13,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 257 transitions. [2022-07-13 22:51:13,256 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 257 transitions. Word has length 83 [2022-07-13 22:51:13,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:13,257 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 257 transitions. [2022-07-13 22:51:13,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.653846153846154) internal successors, (121), 24 states have internal predecessors, (121), 10 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (22), 9 states have call predecessors, (22), 10 states have call successors, (22) [2022-07-13 22:51:13,257 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 257 transitions. [2022-07-13 22:51:13,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 22:51:13,259 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:13,259 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:13,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 22:51:13,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:13,475 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:13,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:13,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1220157194, now seen corresponding path program 1 times [2022-07-13 22:51:13,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:13,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160382539] [2022-07-13 22:51:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:13,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:13,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:13,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:13,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 22:51:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:13,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 22:51:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:13,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 22:51:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:13,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 22:51:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:13,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 22:51:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:13,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 22:51:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:13,656 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-13 22:51:13,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:13,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160382539] [2022-07-13 22:51:13,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160382539] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:51:13,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439252961] [2022-07-13 22:51:13,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:13,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:13,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:13,659 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:51:13,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 22:51:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:13,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 43 conjunts are in the unsatisfiable core [2022-07-13 22:51:13,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:51:13,884 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 22:51:13,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-13 22:51:13,895 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 22:51:13,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-13 22:51:14,782 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1| Int)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1|) 0))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1| Int)) (not (= (select (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1|) 0)))) is different from true [2022-07-13 22:51:14,937 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-13 22:51:14,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:51:15,036 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-13 22:51:15,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439252961] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:51:15,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 22:51:15,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 8] total 18 [2022-07-13 22:51:15,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406396463] [2022-07-13 22:51:15,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 22:51:15,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 22:51:15,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:15,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 22:51:15,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=228, Unknown=1, NotChecked=30, Total=306 [2022-07-13 22:51:15,038 INFO L87 Difference]: Start difference. First operand 175 states and 257 transitions. Second operand has 18 states, 18 states have (on average 5.166666666666667) internal successors, (93), 18 states have internal predecessors, (93), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) [2022-07-13 22:51:15,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:15,591 INFO L93 Difference]: Finished difference Result 572 states and 935 transitions. [2022-07-13 22:51:15,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 22:51:15,591 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.166666666666667) internal successors, (93), 18 states have internal predecessors, (93), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) Word has length 85 [2022-07-13 22:51:15,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:15,596 INFO L225 Difference]: With dead ends: 572 [2022-07-13 22:51:15,596 INFO L226 Difference]: Without dead ends: 431 [2022-07-13 22:51:15,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=110, Invalid=445, Unknown=1, NotChecked=44, Total=600 [2022-07-13 22:51:15,598 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 201 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 174 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:15,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 642 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 492 Invalid, 0 Unknown, 174 Unchecked, 0.3s Time] [2022-07-13 22:51:15,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-07-13 22:51:15,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 230. [2022-07-13 22:51:15,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 185 states have (on average 1.3837837837837839) internal successors, (256), 195 states have internal predecessors, (256), 25 states have call successors, (25), 11 states have call predecessors, (25), 19 states have return successors, (60), 23 states have call predecessors, (60), 24 states have call successors, (60) [2022-07-13 22:51:15,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 341 transitions. [2022-07-13 22:51:15,628 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 341 transitions. Word has length 85 [2022-07-13 22:51:15,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:15,629 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 341 transitions. [2022-07-13 22:51:15,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.166666666666667) internal successors, (93), 18 states have internal predecessors, (93), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) [2022-07-13 22:51:15,629 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 341 transitions. [2022-07-13 22:51:15,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-13 22:51:15,630 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:15,630 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:15,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 22:51:15,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:15,856 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:15,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:15,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1281472374, now seen corresponding path program 1 times [2022-07-13 22:51:15,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:15,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372071368] [2022-07-13 22:51:15,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:15,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:15,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:15,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:15,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 22:51:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:15,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 22:51:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:15,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-13 22:51:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:15,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 22:51:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:15,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 22:51:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:15,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 22:51:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:15,954 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-13 22:51:15,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:15,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372071368] [2022-07-13 22:51:15,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372071368] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:51:15,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94188565] [2022-07-13 22:51:15,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:15,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:15,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:15,956 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:51:15,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 22:51:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:16,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 22:51:16,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:51:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-13 22:51:16,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:51:16,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94188565] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:51:16,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:51:16,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2022-07-13 22:51:16,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52442786] [2022-07-13 22:51:16,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:51:16,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 22:51:16,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:16,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 22:51:16,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 22:51:16,127 INFO L87 Difference]: Start difference. First operand 230 states and 341 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 22:51:16,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:16,157 INFO L93 Difference]: Finished difference Result 410 states and 647 transitions. [2022-07-13 22:51:16,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:51:16,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2022-07-13 22:51:16,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:16,159 INFO L225 Difference]: With dead ends: 410 [2022-07-13 22:51:16,159 INFO L226 Difference]: Without dead ends: 218 [2022-07-13 22:51:16,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:51:16,162 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 8 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:16,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 244 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:51:16,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-07-13 22:51:16,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 215. [2022-07-13 22:51:16,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 170 states have (on average 1.3470588235294119) internal successors, (229), 180 states have internal predecessors, (229), 25 states have call successors, (25), 11 states have call predecessors, (25), 19 states have return successors, (60), 23 states have call predecessors, (60), 24 states have call successors, (60) [2022-07-13 22:51:16,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 314 transitions. [2022-07-13 22:51:16,179 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 314 transitions. Word has length 83 [2022-07-13 22:51:16,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:16,179 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 314 transitions. [2022-07-13 22:51:16,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 22:51:16,180 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 314 transitions. [2022-07-13 22:51:16,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-13 22:51:16,181 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:16,181 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:16,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 22:51:16,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-13 22:51:16,401 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:16,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:16,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1051920264, now seen corresponding path program 1 times [2022-07-13 22:51:16,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:16,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540597291] [2022-07-13 22:51:16,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:16,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:16,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:16,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:16,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 22:51:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:16,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 22:51:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-13 22:51:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:16,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 22:51:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:16,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 22:51:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:16,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 22:51:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:16,600 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-13 22:51:16,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:16,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540597291] [2022-07-13 22:51:16,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540597291] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:51:16,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738411421] [2022-07-13 22:51:16,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:16,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:16,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:16,602 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:51:16,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 22:51:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:16,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 22:51:16,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:51:16,765 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-13 22:51:16,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:51:16,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738411421] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:51:16,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:51:16,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2022-07-13 22:51:16,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133554165] [2022-07-13 22:51:16,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:51:16,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 22:51:16,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:16,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 22:51:16,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:51:16,768 INFO L87 Difference]: Start difference. First operand 215 states and 314 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 22:51:16,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:16,790 INFO L93 Difference]: Finished difference Result 323 states and 488 transitions. [2022-07-13 22:51:16,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:51:16,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2022-07-13 22:51:16,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:16,792 INFO L225 Difference]: With dead ends: 323 [2022-07-13 22:51:16,792 INFO L226 Difference]: Without dead ends: 136 [2022-07-13 22:51:16,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:51:16,794 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 2 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:16,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 235 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:51:16,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-07-13 22:51:16,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 129. [2022-07-13 22:51:16,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 98 states have (on average 1.2346938775510203) internal successors, (121), 104 states have internal predecessors, (121), 17 states have call successors, (17), 9 states have call predecessors, (17), 13 states have return successors, (29), 15 states have call predecessors, (29), 16 states have call successors, (29) [2022-07-13 22:51:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 167 transitions. [2022-07-13 22:51:16,803 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 167 transitions. Word has length 83 [2022-07-13 22:51:16,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:16,804 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 167 transitions. [2022-07-13 22:51:16,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 22:51:16,804 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 167 transitions. [2022-07-13 22:51:16,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-13 22:51:16,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:16,805 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:16,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-13 22:51:17,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-13 22:51:17,031 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:17,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:17,031 INFO L85 PathProgramCache]: Analyzing trace with hash 806524548, now seen corresponding path program 1 times [2022-07-13 22:51:17,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:17,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068753040] [2022-07-13 22:51:17,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:17,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:17,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:17,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:17,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 22:51:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:17,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 22:51:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:17,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 22:51:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:17,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 22:51:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:17,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 22:51:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:17,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-13 22:51:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:17,177 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-13 22:51:17,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:17,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068753040] [2022-07-13 22:51:17,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068753040] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:51:17,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123945163] [2022-07-13 22:51:17,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:17,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:17,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:17,180 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:51:17,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 22:51:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:17,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 60 conjunts are in the unsatisfiable core [2022-07-13 22:51:17,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:51:17,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-07-13 22:51:17,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:51:17,447 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-13 22:51:17,505 INFO L356 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size [2022-07-13 22:51:17,507 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-07-13 22:51:17,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 22:51:17,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-13 22:51:17,736 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_#memory_$Pointer$.base_33| input size 44 context size 44 output size 44 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:182) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:164) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:152) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:764) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:725) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:643) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:335) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:176) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:251) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:409) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:300) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:152) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-13 22:51:17,739 INFO L158 Benchmark]: Toolchain (without parser) took 17356.73ms. Allocated memory was 92.3MB in the beginning and 251.7MB in the end (delta: 159.4MB). Free memory was 49.9MB in the beginning and 69.4MB in the end (delta: -19.6MB). Peak memory consumption was 140.8MB. Max. memory is 16.1GB. [2022-07-13 22:51:17,739 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 22:51:17,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1673.60ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 49.7MB in the beginning and 79.7MB in the end (delta: -30.0MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2022-07-13 22:51:17,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.15ms. Allocated memory is still 127.9MB. Free memory was 79.7MB in the beginning and 74.2MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 22:51:17,740 INFO L158 Benchmark]: Boogie Preprocessor took 33.78ms. Allocated memory is still 127.9MB. Free memory was 74.2MB in the beginning and 71.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 22:51:17,740 INFO L158 Benchmark]: RCFGBuilder took 570.26ms. Allocated memory is still 127.9MB. Free memory was 71.9MB in the beginning and 51.8MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-13 22:51:17,741 INFO L158 Benchmark]: TraceAbstraction took 14965.79ms. Allocated memory was 127.9MB in the beginning and 251.7MB in the end (delta: 123.7MB). Free memory was 51.2MB in the beginning and 69.4MB in the end (delta: -18.3MB). Peak memory consumption was 105.2MB. Max. memory is 16.1GB. [2022-07-13 22:51:17,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1673.60ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 49.7MB in the beginning and 79.7MB in the end (delta: -30.0MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.15ms. Allocated memory is still 127.9MB. Free memory was 79.7MB in the beginning and 74.2MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.78ms. Allocated memory is still 127.9MB. Free memory was 74.2MB in the beginning and 71.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.26ms. Allocated memory is still 127.9MB. Free memory was 71.9MB in the beginning and 51.8MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 14965.79ms. Allocated memory was 127.9MB in the beginning and 251.7MB in the end (delta: 123.7MB). Free memory was 51.2MB in the beginning and 69.4MB in the end (delta: -18.3MB). Peak memory consumption was 105.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_$Pointer$.base_33| input size 44 context size 44 output size 44 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_$Pointer$.base_33| input size 44 context size 44 output size 44: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-13 22:51:17,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a49fa15b0860d2357f9ad3c8c6bab1d80cf83a6734355dc0b05c55121c837273 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 22:51:19,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 22:51:19,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 22:51:19,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 22:51:19,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 22:51:19,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 22:51:19,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 22:51:19,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 22:51:19,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 22:51:19,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 22:51:19,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 22:51:19,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 22:51:19,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 22:51:19,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 22:51:19,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 22:51:19,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 22:51:19,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 22:51:19,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 22:51:19,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 22:51:19,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 22:51:19,773 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 22:51:19,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 22:51:19,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 22:51:19,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 22:51:19,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 22:51:19,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 22:51:19,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 22:51:19,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 22:51:19,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 22:51:19,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 22:51:19,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 22:51:19,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 22:51:19,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 22:51:19,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 22:51:19,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 22:51:19,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 22:51:19,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 22:51:19,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 22:51:19,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 22:51:19,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 22:51:19,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 22:51:19,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 22:51:19,802 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-13 22:51:19,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 22:51:19,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 22:51:19,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 22:51:19,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 22:51:19,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 22:51:19,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 22:51:19,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 22:51:19,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 22:51:19,837 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 22:51:19,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 22:51:19,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 22:51:19,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 22:51:19,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 22:51:19,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 22:51:19,839 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 22:51:19,839 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 22:51:19,839 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 22:51:19,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 22:51:19,839 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 22:51:19,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 22:51:19,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 22:51:19,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 22:51:19,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 22:51:19,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:51:19,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 22:51:19,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 22:51:19,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 22:51:19,841 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 22:51:19,841 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 22:51:19,841 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 22:51:19,842 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 22:51:19,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 22:51:19,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 22:51:19,842 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49fa15b0860d2357f9ad3c8c6bab1d80cf83a6734355dc0b05c55121c837273 [2022-07-13 22:51:20,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 22:51:20,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 22:51:20,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 22:51:20,198 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 22:51:20,198 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 22:51:20,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i [2022-07-13 22:51:20,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242d488b5/db430df1060042ad9adac5f7c286d7a7/FLAG83c19bebc [2022-07-13 22:51:20,942 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 22:51:20,943 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i [2022-07-13 22:51:20,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242d488b5/db430df1060042ad9adac5f7c286d7a7/FLAG83c19bebc [2022-07-13 22:51:21,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242d488b5/db430df1060042ad9adac5f7c286d7a7 [2022-07-13 22:51:21,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 22:51:21,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 22:51:21,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 22:51:21,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 22:51:21,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 22:51:21,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:51:21" (1/1) ... [2022-07-13 22:51:21,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360758d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:21, skipping insertion in model container [2022-07-13 22:51:21,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:51:21" (1/1) ... [2022-07-13 22:51:21,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 22:51:21,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 22:51:21,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i[4493,4506] [2022-07-13 22:51:21,559 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_end_harness.i[4553,4566] [2022-07-13 22:51:22,137 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,137 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,138 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,138 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,139 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,157 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,159 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,162 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,163 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,165 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,166 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,167 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,167 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:22,396 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:51:22,397 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:51:22,397 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:51:22,399 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:51:22,399 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:51:22,400 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:51:22,401 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:51:22,402 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:51:22,403 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:51:22,413 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:51:22,509 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:51:22,520 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.ArithmeticException: BigInteger out of int range at java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1009) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2978) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2836) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2138) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-13 22:51:22,526 INFO L158 Benchmark]: Toolchain (without parser) took 1290.06ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 32.3MB in the beginning and 42.6MB in the end (delta: -10.3MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-07-13 22:51:22,526 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory was 42.5MB in the beginning and 42.5MB in the end (delta: 47.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 22:51:22,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1287.63ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 32.2MB in the beginning and 42.6MB in the end (delta: -10.4MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-07-13 22:51:22,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory was 42.5MB in the beginning and 42.5MB in the end (delta: 47.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1287.63ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 32.2MB in the beginning and 42.6MB in the end (delta: -10.4MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: ArithmeticException: BigInteger out of int range: java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range